baber/WOPTO huggingface dataset:
Patent GB-1423469-A (GB)
Title: Power wrench
IPC: B25B23/157
Filed: 1974-06-26
Abstract: 1423469 Wrenches ATLAS COPCO AB 26 June 1974 [2 July 1973] 28398/74 Heading B3N [Also in Division H2] A power wrench comprises a motor 14 which, through a reduction gearing 20, 21 and a clutch, rotates an output shaft 12, the clutch being arranged to release the output shaft from the motor when the torque transmitted therethrough reaches a predetermined value, wherein the clutch is a magnetic clutch that comprises a driving clutch member 16 having a permanent magnetic member, 26, 27, 28 and a driven clutch member 17 having a permanent magnetic member 22, 23, 24, the permanent magnetic members facing each other through a clearance 25 and being magnetized perpendicularly to said clearance to form a plurality of angularly distributed pole surfaces interacting through the clearance. The permanent magnets are cemented to sleeves 29, 30 and shaft 19 as shown. Sleeve 29 is splined to the motor output shaft 18. The torque at which the clutch members rotate relative to each other can be adjusted by varying the relative angular position of the pair of magnets 26, 27 to magnets 22, 23. This is achieved with a coned chisel after loosening screws 31. In an alternative embodiment there are only two coaxial magnets. The outer of these is axially movable to give a torque setting adjustment. The embodiment has a means for shutting off the motor when there is relative rotation between the clutch members. The means comprises an axially movable rod connected to a valve; movement of the rod being dependent on interacting dogs connected to the driven and driving members respectively.
Patent GB-436992-A (GB)
Title: Improvements in or relating to doors and door-frames of apparatus for the heat treatment of carbonaceous materials
IPC: C10B25/16
Filed: 1934-10-04
Abstract: 436,992. Coke - oven doors. GAS CHAMBERS & COKE OVENS, Ltd., and LYMN, A. H., Artillery House, Artillery Row, Westminster. Oct. 4, 1934, No. 28414. Addition to 381,118. [Class 123 (i)] [See also Group XII] In a coke-oven door of the kind described in the parent Specification, and in which a rigid door frame coacts with a metal door having two or more metal-to-metal seals, at least one of which is flexible, both seals are flexible, the outer seal being of the same nature as the inner flexible seal of the parent Specification. In a modification, the outer seal may be provided with asbestos or other non-metallic packing. In Fig. 1, the inner seal is formed by flexible steel plates 3 mounted at the rear of a plate 5 to which the door is secured by brackets 11. The plates 3 bear against the inclined surface of the frame 1 as also do the flexible plates 6 of the outer seal. Lugs 8 on screwed spindles 8<a> may be adjusted to allow for warping of the frame 1. Locking bars 9 engaging behind retaining members 10 thrust on the door when it is locked. In Fig. 2, the outer seal consists of flexible plates 25 which carries asbestos packing 26 in a holder formed by a metal strip 27 and angle iron 28. Set-screws 29 in brackets 30 have reduced ends which pass through the plates 25 and press on a metal backing 32 supporting the asbestos packing which is forced forward to an amount. determined by the thickness of washers 33. The door frame 1 is insulated from, and mechanically attached to, the main door frame so that it does not partake of the distortion of the latter. A free passage for gas from the bottom of the oven to the top is provided in the space between the plate 5 and the holders 12 for the refractory lining 13.
Patent GB-686934-A (GB)
Title: Improvements in and relating to moving coil loudspeakers
Inventor: FALKUS ARTHUR EVEREST
IPC: H04R9/04
Filed: 1950-11-21
Abstract: 686,934. Loud-speakers. PLESSEY CO., Ltd. Nov. 21, 1951 [Nov. 21, 1950], No. 28414/50. Class 40 (iv). To prevent the leads of a moving coil rattling against the diaphragm and to avoid the introduction of resonances in the diaphragm by the use of an adhesive, the leads pass through eyelets or holes 2 and 6 in the centring member before passing to the fixed terminals on the rigid chassis of the speaker.
Patent GB-1436390-A (GB)
Title: Hydraulic swash plate pump
IPC: F04B1/14
Filed: 1973-06-14
Abstract: 1436390 Fluid-pressure servomotor systems G LEDUC and M LEDUC 14 June 1973 [16 June 1972 27 Oct 1972] 28448/73 Heading G3P [Also in Division F1] A hydraulic swash-plate pump is provided with a slide valve controlling the swash-plate adjusting jack in dependence upon the delivery pressure, the valve being subject to the pressure existing at the back of the jack and also to an opposing spring force. In one arrangement, the pump has at least two delivery flows and the jack is controlled in dependance upon the highest of the delivery pressures. In this arrangement, Figs. 2, 4, the swash-plate 6 is pivotally mounted on a pin (5), Figs. 1, 5 &c. (not shown) attached to drive-shaft 4 and includes bores 14 each provided with a non- return valve 15 and spaced such that in the delivery phase of pistons 3 any one stud 12 of a group corresponding to a respective flow always has its central orifice communicating with a bore 14. Each of the latter connects with a common chamber 16, the pressure therein thus always being the highest of the various delivery flows. Chamber 16 is enclosed by stud 18 against which bears the head of jack piston 8. The latter is extended by a rod 24 passing through a bore 25 to define a calibrated orifice separating chambers 23, 26. A spring-biased slide valve 29 is mounted in a bore 28 within rod 24 and piston 8 and, according to its position, connects chamber 23 and conduit 31 either via conduit 32 to the high-pressure within chamber 16 or via conduit 33 to the low inlet pressure in chamber 13. Thus any change in the highest delivery pressure causes a change in pressure in chamber 26 resulting in movement of slide valve 29 and jack piston 8 until equilibrium is restored. Liquid from chamber 16 is also supplied through a passage (35) in swash-plate 6 to a duct (34), Figs. 5 to 8, (not shown), within the mounting pin (5) and thence through asymmetrically disposed ports (36, 37) to lubricate the pin bearings (38) and at least partially balance the torsional force to which the pin is subjected. In a modification Figs. 11, 12, the pump comprises twelve pistons arranged in four groups 3a, b, c, d the cylinders of which are connected to separate deliveries via non-return valves such as 42c. Each cylinder is connected to a common conduit 43 via non-return valves 40a, b, c, d such that the conduit is at the highest of the delivery pressures. This pressure is communicated to slide valve 29 via passages (44, 45) Fig. 9 (not shown), in the pump housing and a seal ring (46) surrounding the pump drive-shaft 4. In a further modification, Fig. 10, (not shown) only one non-return valve 40a, b, c, or d is provided for each group of cylinders, the latter in each group being inter-connected by a conduit (e.g. 41a). The non-return valves 40a &c. may be disposed downstream of the delivery non- return valves 42a &c. The pump includes, Figs. 2, 4, a centrally disposed inlet duct 17 aligned with a blind hole 9 in swash-plate'6 connecting via passage 10 and arcuate port 11 with pistons 3 during their suction stroke.
Patent GB-1061627-A (GB)
Title: Hydraulic apparatus
Inventor: BOYDELL KENNETH RAYMOND
IPC: F16H39/08
Filed: 1964-07-10
Abstract: 1,061,627. Hydrostatic transmissions. DOWTY TECHNICAL DEVELOPMENTS July 2, 1965 [July In, 1964], No. 28519/64. Heading F2C. In an hydrostatic power transmission comprising, in closed circuit, a tilt head pump and a tilt head motor either of which may have variable tilt, the pump and motor shaft bearing housings 33, 10 are mounted in fixed relation to one another such that common planes respectively passing through the shaft and head axes 48, 97 of the pump and 27, 28 of the motor intersect at right angles (as shown) or at 70 degrees to 90 degrees, e.g. 83 degrees (Fig. 4, not shown), the line of intersection of these two planes either intersecting or passing close to the points of intersection Y, X respectively of the pump shaft and head axes and the motor shaft and head axes. As shown, a variable tilt pump and a fixed tilt motor comprise input (e.g. engine driven) and output shafts 4, 5 respectively connected to rotatable cylinder barrels 49, 17 through constant-velocity universal joints 42, 24 of known caged balls and meridian grooves type. Pump and motor connecting rods 39, 15 are ball-jointed at their respective ends to shaft flanges 37, 13 and pistons 54, 21 reciprocable in the barrel cylinders. The pump cylinder barrel 49 is rotatably supported on a valve block 51 fixed within a yoke 46. The latter is pivotally supported, for movement in either direction from zero tilt, by its trunnions 65, 66 having end thrust absorbing flanges 69 and by trunnions 44, 45 integral with the pump shaft bearing housing 33. The motor shaft bearing housing 10 is integral with the main casing 1 which supports the trunnions 65, 66, the pump shaft bearing housing 33 (slidably), and a bolted-on extension 2 to which is fixed a valve block 16 rotatably supporting the motor cylinder barrel 17. The casing 1 has an integral mounting extension 12, surrounding the motor shaft, and has bolted thereto a cover 3. A pump head tilting servomotor 93 secured to the casing 1 comprises a control member 94 and a piston rod 95 linked to the yoke 46. A make-up pump 84, driven from the pump shaft 4 by chain and sprockets 87, 85, 86 and bolted to the casing, draws from a reservoir and delivers through a filter to a conventional valve system in a casing 92 formed on the end of the valve block 16. Pump and motor leakage collected in the parts 1, 2, 3 are fed back to the reservoir. Rigid pipes 82, 83 connect the motor valve block 16 with pipe connections 71, 72 connected to the pump valve block 51 through thin leakage-preventing tubular seals 73 and yoke passages 63, 64.
Patent GB-701795-A (GB)
Title: Improvements in or relating to electric induction hardening
Inventor: PRICE LEWIS DILWYN
IPC: H05B6/02
Filed: 1950-11-22
Abstract: 701,795. Hardening metals. GENERAL ELECTRIC CO., Ltd. Nov. 22, 1951 [Nov. 22, 1950], No. 28561/50. Class 72 In a method of hardening an annular or similar surface of a body by electric induction heating followed by quenching, the heater is moved progressively over the surface finishing at or near the starting point, the finishing point and surface immediately before that point being masked at starting and the starting point and surface immediately following it masked at the finish. As shown, a wheel 11 to be treated rotates beneath an induction heater 10 and a mask 15 rotatable about the same shaft 12 carries pins 19 and 20; which together with a pin 18 attached to the wheel restrict its movement relative to the wheel. As the wheel rotates clockwise the treatment begins at the edge 15a of the mask, and the spring 21 subsequently engages the mask to bring pin 20 into contact with pin 18 and the edge 15b into the position relative to the wheel previously occupied by the edge 15a. Alternatively, the mask may be in the form of a plate hinged about one of its edges defining the starting and finishing position.
Patent GB-870758-A (GB)
Title: Improvements in or relating to constant velocity universal joints
IPC: F16D3/223
Filed: 1958-09-08
Abstract: 870,758. Universal joints. LEON, E. D. Sept. 8, 1958 [April 2, 1958], No. 28701/58. Class 80 (2). [Also in Group XXII] In a constant velocity-ratio universal joint of the kind having balls 26 in grooves 21 ... 24 in inner and outer members 11, 10 each member has an even number of straight grooves and adjacent grooves 21, 22 and 23, 24 are oppositely inclined at the same angle to the longitudinal axis of the respective member so that diametrically-opposed grooves are parallel and adjacent grooves in the inner and outer members 11, 10 intersect at the same angle when the longitudinal axes of the two members coincide. As shown, the balls 26 are retained in a partspherical cage 12 between the spherical surfaces 20, 19 of the inner and outer members 11, 10 and the axis of each groove lies in a plane through the axis of the member. In Figs. 11 ... 13 (not shown) adjacent grooves in each member are oppositely inclined at an equal angle to the plane through the axis, and the balls are retained by the grooves alone. Since opposite grooves in each member are parallel they can be formed simultaneously by a single broaching operation.
Patent GB-173625-A (GB)
Title: Power generating units for locomotive headlights
IPC: F01D15/02
Filed: 1920-10-11
Abstract: 173,625. Elrod, H. E., and Lacy, B. B., (trading as Elrod Co., H. E.). Oct. 11, 1920. Regulating.-A radial-flow turbine with segmental admission 29 is furnished with a throttle valve 22 controlled by a simple shaft-governor through a lever 49 pivoted within the turbine casing and having an adjustable contact screw 50. The governor arms are pivoted to the righthand face of the rotor 27 and press upon a sleeve 33, the movement of which is opposed by a spring 34 on the opposite side of the rotor. The turbine drives an electric generator in connection with the head-lights of a locomotive.
Patent GB-707784-A (GB)
Title: Improvements in electric adding and subtracting devices
IPC: G06F7/50
Filed: 1951-12-07
Abstract: 707,784. Digital electric calculating-apparatus. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Dec. 7, 1951 [Dec. 7, 1950], No. 28799/51. Class 106 (1) In an electric adding and subtracting device in which two series-mode binary pulse trains A, B, representing the numbers to be added or subtracted, and a carry pulse train R, obtained from a carry-over channel via delay element E, are respectively applied to three control units to place them in one of two operative conditions corresponding to presence or absence of a pulse (representing " 1 " or " 0 "), these control units and a fourth addsubtract unit () each control one stage of a system of " switches " (i.e. electric circuits controllable to permit and interrupt the flow of current through a conductor) so as to direct an input auxiliary voltage to neither, either or both of output channel (S) and the carry-over channel (R) to form the output and carry trains, respectively. In the arrangement of Fig. 1, the control units may be relay coils controlling a network of contacts to which a voltage is applied at the left-hand end, the contacts closed to represent digits 0 and 1 in the first three stages being indicated by (0), (1) respectively. In the fourth stage, contacts (+) (-) are closed for addition and subtraction respectively to obtain the correct carry output R in each case. The correct pulse form of the sum and carry outputs S, R may be obtained by multi-grid gate valves to which potentials from the contact network and clock pulses are simultaneously applied. Also, the relay contacts may be replaced by electronic gates controlled by bi-stable trigger circuits which are reset at the end of each digit period. Alternatively, each control unit may comprise a pair of triodes such as 59, 60, Fig. 3, and the switches may comprise unidirectional elements such as crystal or metal rectifiers. The left-hand triode of each pair is biased so as normally to conduct but a positive pulse (representing " 1 " or subtraction) at the grid of input valve such as 75 will cause negative and positive pulses to be applied to the triodes such as 59, 60 to transfer conduction to the right-hand one. The pulses applied to addsubtract input valve 78 may be replaced by a control voltage. The rectifiers form with parallel conductors 15-17, 25-28, and 31, to which the positive auxiliary voltage at 10 is applied either directly or through cathode followers 20, 29, coincidence gates each of which produces a positive output voltage only if none of its rectifiers is connected to earth through a conducting triode. The outputs of conductors 15, 25 and 31 are applied through buffer rectifiers 32-34 to output valve 38 which is biased to cut-off except when re-timing positive clock pulses are applied at 46 to produce the sum output pulse train S The outputs of conductors 26-28 are applied to a similar valve 39 to produce the carry output R which is fed back through delay line 48 and inverting valve 49 to the input line 50 of the "carry" control unit including valve 76.
Patent GB-709618-A (GB)
Title: Improvements in or relating to glass rolling apparatus and rollers therefor
IPC: B32B17/10
Filed: 1952-11-14
Abstract: 709,618. 'Solid rollers; pressing laminated sheeting. FORD MOTOR CO., Ltd. Nov. 14, 1952 [Dec. 26, 1951], No. 28814/52. Classes 42 (2) and 140 Rollers 10, 11 for pressing curved laminated glass sheeting comprise a central metal shaft 24 surrounded by a thick layer 25 of soft, porous sponge rubber in turn surrounded by a much thinner layer 26 of harder rubber having a Shore durometer reading of 25 to 35 and an outer working layer 27 of still harder,rubber having a durometer reading of 35 to 45. Preferably the durometer readings of layers 2'6, 27 are respectively about 30 and 40. The ends of the rollers are radiussed, and roller 10 may additionally be slightly crowned; the surface of either roller may be provided throughout its length with small peripheral grooves. The rollers are journalled for rotation in side members 12 which are in turn journalled in trunnions 13. The lower roller 11 is chain driven; the upper roller 10 is driven frictionally by contact with roller 11 and its journals may be slidably mounted in members 12 so that it rests by gravity alone on roller 11. The term " rubber " is used as including elastomers generally.
Patent GB-725791-A (GB)
Title: Improvements in or relating to quartz fibre electroscopes
Inventor: HENDERSON RONALD PATERSON
IPC: H01J47/04
Filed: 1950-12-14
Abstract: 725,791. Electroscopes. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Dec. 11, 1951 [Dec. 14, 1950], No. 28953/51. Draw. ings to Specification. Class 37. The fibre of a quartz fibre electroscope is charged by means of a cosmic discharge. The detailed description is identical with that of Specification 691,557.
Patent GB-1077974-A (GB)
Title: Quinoline compounds and a process for their production
Inventor: HROMATKA OTTO
IPC: C07D215/233
Filed: 1964-07-14
Abstract: The invention comprises compounds of the formula <FORM:1077974/C2/1> wherein each of R1 and R2 represents a hydrogen atom or a C1- 4 alkyl, phenyl-C1- 4 alkyl, C1- 4 hydroxyalkyl, C1- 4 alkoxy-C1- 4 alkyl, di-(C1- 4 alkyl)-amino-C1- 4 alkyl or C2- 5 alkoxy-carbonyl-C1- 4 alkyl group, and each of R3 and R4 represents a hydrogen or halogen atom or a C1- 4 alkyl or C1- 4 alkoxy group, non-toxic acid addition salts thereof, and their preparation by (a) reacting 1-phenyl-4-oxo-1,2,3,4-tetrahydro quinolines of the formula <FORM:1077974/C2/2> with hydroxylamine to form the corresponding 1 - phenyl - 4 hydroximino - 1,2,3,4 - tetrahydroquinolines, reducing these hydroximino compounds to the corresponding 4-amino compounds (Formula I, R1=R2=H), and, if desired, substituting one or both of the hydrogen atoms in the 4-amino group by the radicals listed above for R1 and R2, or (b) by reacting compounds of the Formula II with compounds of the formula NH2-R1 in which R1 has the meaning given above except for hydrogen, to form the corresponding 4-imino compounds, reducing these imino compounds to form the corresponding 4-mono-substituted-amino compounds (Formula I, R2=H), and, if desired, replacing the hydrogen atom of the mono-substituted-amino group by a radical listed above for R2.  The free bases can be converted into the corresponding salts with non-toxic mineral or organic acids.  1 - Phenyl - 4 - oxo - 1,2,3,4 - tetrahydroquinolines of the Formula II are prepared by cyclization of the corresponding b -diphenylamino-propionic acids which are themselves prepared by reaction of the corresponding diphenylamines with b -propiolactone. b  - (4,41 - Diethyl - diphenylamino) - propionic acid is characterized by its S-benzyl-isothiouronium salt.  1 - Phenyl - 4 - (31 - hydroxy-propionamido) - 1,2,3,4 - tetrahydro - quinoline is characterized by its phenyl isocyanate derivative.
Patent GB-674416-A (GB)
Title: Improved chucking mechanism
IPC: B23B31/20
Filed: 1950-11-29
Abstract: 674,416. Chucks; lathes. FAIRWEATHER, H. G. C. (National Acme Co.). Nov. 29, 1950, No. 29261/50. Class 83 (iii). A hollow-spindle chuck for gripping a workpiece, such as a valve 16, so that both ends can be machined simultaneously, comprises a pair of oppositely-facing collets 35, 37 closed by wedge means 48 forced between the opposed tapered ends 46, 47 of a pair of collet-engaging sleeves 42, 44. The chuck is fitted between a pair of end caps 27, 28 on the hub of a gear 11 which is journalled on a support 10 and is driven by a gear 12 on a spindle 13. The end caps each have a shoulder 30 against which a shoulder 38 on each collet is pressed by a spring 39 so that the collets do not move axially on the valve stem as they grip it, and one cap 28 can be screwed into various positions and locked by a screw 49 so that the distance between the shoulders 30, and therefore the gripping diameter, is varied; the cap 27 has also a flange 29 which engages the valve head to prevent bending. Balls 48 comprise the wedge means and, to close the chuck, are forced between the ends of the sleeves 42, 44 by a slidable spool 51 having a cam surface 52. One or more sliding pins 53 are fitted between each end cap and the spool and operate the chuck whilst it is rotating, being engaged by a rotating sleeve sliding over the head of the valve to open the chuck or by a rotating sleeve on the tool slide to close the chuck.
Patent GB-1303201-A (GB)
IPC: C08G18/48
Filed: 1970-06-17
Abstract: 1303201 Polyurethanes FARBENFABRIKEN BAYER AG 17 June 1970 [20 June 1969] 29365/70 Heading C3R Polyurethanes are prepared by reacting a polyether containing hydroxyl groups at least 10% of which are primary hydroxyl groups with a polyisocyanate solution which is a 10 to 70% by weight solution of an NCO-containing product, prepared by reacting a monomeric polyisocyanate with a di- and/or higher functional compound containing hydroxyl groups, dissolved in a mixture of toluene di-isocyanate(s) and 4,4<SP>1</SP>-diphenyl methane di-isocyanate. A blowing agent may be included in the reaction mixture so as to form a foam. In the specific example, a reaction product of trimethylolpropane and butane-1,3-diol and toluylene diisocyanate is dissolved in toluylene di-isocyanate and mixed with water, triethylene diamine and crude diphenylmethane di-isocyanate to form a foam.
Patent GB-192193-A (GB)
Title: A process for welding nickel and nickel alloys
IPC: B23K5/12
Filed: 1921-11-04
Abstract: 192,193. Allen-Liversidge, Ltd., and Smith, C. Coulson-. Nov. 4, 1921. Uniting by fusion.-Nickel and alloys containing a high percentage of nickel are welded in the presence of carbon or carbonaceous material which produces a reducing atmosphere, reduces the rate of cooling, and prevents disintegration of the substances. Bars of nickel with chamfered ends are welded together on a carbon block with a sodium silicate flux. The welded bar may be annealed, hammered, or rolled. The longitudinal seam of a tube is welded by the insertion of carbon rods. In lieu of the blowpipe, the weld may be effected bv carbon electrodes in direct contact with the metals, or by carboncovered electrodes.